Marine Protected Area Monitoring - The Philippines

Globally, coral reefs are experiencing significant impacts from climate change and direct human activities. Photogrammetry provides an ideal tool for both rapid impact assessments and long-term monitoring. Successive surveys can build up picture of change, allowing quantification of both growth and erosion on multiple scales. 

Here we used photogrammetry to evaluate the efficacy of marine protected areas in the Philippines as well as assess the effects of dynamite fishing outside of these zones.

Bayley, D.T.I., Mogg, A.O.M., Purvis, A. and Koldewey, H.J. (2019). Evaluating the efficacy of small-scale MPAs for preserving reef health: A case study applying emerging monitoring technology. Aquatic Conservation: Marine and Freshwater Science 29, 2026-2044

Inside the Bilangbilangan Marine Protected Area, on the west of the Danajon Bank reef system in the Philippines, community led efforts have prevented the use of destructive fishing efforts, most notably dynamite fishing. This small scale MPA was established in 1999, and is now dominated by branching, complex coral forms, with commensurately high fish biomass and diversity. 

Outwith the Pandanon Marine Protected Area, the prevalence of dynamite fishing has reduced much of the substrate to blasted rubble, with only hardy, mobile coral species showing any ability to survive. The diversity and biomass of the fish in the area is lower than within the MPAs, both due to the lack of niche availability and the non-specific nature of dynamite fishing.

Interactive 3D Models

Model navigation and controls

Move camera: 1 finger drag or Left Mouse Button
Pan: 2-finger drag or Right Mouse Button or SHIFT+ Left Mouse Button
Zoom on object: Double-tap or Double-click on object
Zoom out: Double-tap or Double-click on background
Zoom: Pinch in/out or Mousewheel or CTRL + Left Mouse Button
Double-clicking the background also re-centers the model and sets the camera pivot point to the middle of its bounding box. Double-clicking anywhere on the model sets the camera pivot point to that spot.
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